Senior Security Analyst | UK Remote | Permanent | Up to £55,000 p.a
Peaple Talent have exclusively partnered with an MSP client looking to recruit a Senior Security Analyst.
This role is suited to an enthusiastic and forward-thinking Senior Security Analyst with a strong interest in threat detection and response, as well as leveraging advanced technologies to automate incident response, remediation, and reporting. It offers the opportunity to work in a fast-paced environment alongside a team committed to innovation, continuous improvement, and operational excellence.
This position is highly technical, covering detection engineering, forensic investigation, threat hunting, and incident response, primarily within the Microsoft security ecosystem (including Sentinel and Defender XDR).
The Role
This role involves managing complex, time-sensitive security incidents across a diverse customer base. It requires the ability to assess alerts quickly, apply threat intelligence, and respond effectively using a wide range of tools.
This position plays a critical role in protecting customer environments and contributes directly to our client’s SOC goal of delivering a high-quality, world-class MDXR service. Senior analysts are key to maintaining service standards and driving continuous improvement.
Regular interaction with SOC colleagues, internal teams, and customers is expected. The role includes direct communication with clients when escalating incidents or responding to queries.
Key Responsibilities
- Mentor and support junior analysts, driving improvements in both team capability and operational processes.
- Design, test, and deploy detection rules and analytics within Microsoft Sentinel using KQL.
- Continuously tune detection logic to reduce false positives and enhance alert quality.
- Develop and maintain playbooks and runbooks to ensure consistent and effective incident response.
- Support engineering activities, including log source onboarding, parser development, and data validation.
- Perform pre-go-live checks on new customer environments to ensure monitoring readiness.
- Conduct detailed investigations into security alerts across platforms such as Microsoft Sentinel and Defender XDR.
- Carry out forensic analysis and evidence gathering in response to suspected breaches.
- Proactively identify potential compromises using available tools and telemetry.
- Lead threat hunting activities across customer environments during quieter operational periods.
- Escalate and communicate security incidents to customer clearly and in a timely manner.
- Act as a SME.
- Produce technical documentation, use cases, and playbooks to support root cause analysis and knowledge sharing.
- Stay informed on emerging threats, vulnerabilities, and attacker techniques.
- Respond to customer queries and ad hoc requests in a professional and timely manner.
- Contribute to the ongoing improvement of detection content in response to evolving threats.
- Ensure compliance with organisational policies, procedures, and relevant legal or regulatory requirements.
Key Experience Required
- Previous experience in a cyber security role, ideally within a Security Operations environment.
- Strong understanding of security monitoring, incident response, and threat detection principles.
- Proactive mindset, with a willingness to learn and adapt in a fast-paced environment.
- Ability to analyse complex problems, prioritise effectively, and make sound decisions under pressure.
- Genuine passion for cyber security, technology, and continuous improvement.
- Certifications such as SANS, CompTIA CySA+, Security+, CCNA, or Network+.
- Experience with scripting or automation (e.g. Python) desirable.
- Familiarity with MITRE ATT&CK.
- Experience with Microsoft/Azure or other cloud-based security technologies.
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